Hello, I have the following scenario:
A grid contains multiple columns. One of the columns has a custom cell template that hosts a UserControl (ascx). In this user control, there are multiple RadComboBox controls (each row needs to be able to set multiple values) and these are contained in UpdatePanels (so each UserControl can update it's content independently). Everything works fine on the initial page load, but as soon as we use the pager to go to another page, the RadComboBox's SelectedIndexChanged events are fired (debugging on the server shows that they are well received and executed), but the result is never updating in the grid proper. Firebug and Fiddler indicate that the request is working correctly, but that the result of the request is simply never being applied to the page properly.
As I stated earlier, this ONLY happens after using the pager (first / prev / next / last or directly clicking a value).
Any thoughts?
A grid contains multiple columns. One of the columns has a custom cell template that hosts a UserControl (ascx). In this user control, there are multiple RadComboBox controls (each row needs to be able to set multiple values) and these are contained in UpdatePanels (so each UserControl can update it's content independently). Everything works fine on the initial page load, but as soon as we use the pager to go to another page, the RadComboBox's SelectedIndexChanged events are fired (debugging on the server shows that they are well received and executed), but the result is never updating in the grid proper. Firebug and Fiddler indicate that the request is working correctly, but that the result of the request is simply never being applied to the page properly.
As I stated earlier, this ONLY happens after using the pager (first / prev / next / last or directly clicking a value).
Any thoughts?
3 Answers, 1 is accepted
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Christian
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answered on 26 Nov 2010, 03:42 PM
Before I forget, version of Telerik.Web.UI.dll is 2010.2.826.35.
Thanks.
Thanks.
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Hello Christian,
Paging means RadGrid rebinds. Rebinding causes all your items to be recreated, together with the controls inside. So, your user control, the combos inside and everything else in the grid items are gone and re-initialized. Thus, selected values and states are gone too. You need to persist the selected values of your combos elsewhere before RadGrid pages and then restore these values back to the combos after the grid rebinds.
Veli
the Telerik team
Paging means RadGrid rebinds. Rebinding causes all your items to be recreated, together with the controls inside. So, your user control, the combos inside and everything else in the grid items are gone and re-initialized. Thus, selected values and states are gone too. You need to persist the selected values of your combos elsewhere before RadGrid pages and then restore these values back to the combos after the grid rebinds.
Veli
the Telerik team
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Christian
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answered on 01 Dec 2010, 02:59 PM
Actually, I updated the version of the RadControls to 2010 Q3 and the problem resolved itself. Guess the bug was fixed in one of your patches.
Thanks for the answer!
Thanks for the answer!